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What fascinates me most about '''Euglena gracilis''' is its ability to use photosynthesis or rather the need of this capability to survive. | What fascinates me most about '''Euglena gracilis''' is its ability to use photosynthesis or rather the need of this capability to survive. | ||
Photosynthesis means that the organism converts light energy into chemical energy to power its energy balance. Euglena subsist heterotrophic and autotrophic; besides the process of photosynthesis (which is used by plants) it takes nourishment like animals as well. Euglena gracilis is a mixotrophic microorganism. | Photosynthesis means that the organism converts light energy into chemical energy to power its own energy balance. Euglena subsist heterotrophic and autotrophic; besides the process of photosynthesis (which is used by plants) it takes nourishment like animals as well. Euglena gracilis is a mixotrophic microorganism. | ||
Besides that, it is able to recognize the stimulus of light (phototaxis). This function helps Euglena to move towards light sources to always assure the facility to use photosynthesis. [https://de.wikipedia.org/wiki/Augentierchen] | Besides that, it is able to recognize the stimulus of light (phototaxis). This function helps Euglena to move towards light sources to always assure the facility to use photosynthesis. [https://de.wikipedia.org/wiki/Augentierchen] | ||
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This made me think of several questions: | This made me think of several questions: | ||
*What happens when the whole tube is wrapped with foil and there is only red light? What will the Euglena's concentration be like? | *What happens when the whole tube is wrapped with foil and there is only red light? What will the Euglena's concentration be like? | ||
*How do | *How do Euglena react to other colors? | ||
*Is there a color | *Is there a color it prefers? | ||
*Can I create contrasts in the concentration by using different colors? | *Can I create contrasts in the concentration by using different colors? | ||
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*Is it possible to arrange Euglenas in forms I want them to be? | *Is it possible to arrange Euglenas in forms I want them to be? | ||
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